Add some commands

cmd/micro/display/bufwindow.go

@@ -41,6 +41,10 @@ func NewBufWindow(x, y, width, height int, buf *buffer.Buffer) *BufWindow {
 	return w
 }
 
+func (w *BufWindow) SetBuffer(b *buffer.Buffer) {
+	w.Buf = b
+}
+
 func (v *View) GetView() *View {
 	return v
 }

cmd/micro/display/infowindow.go

@@ -53,6 +53,10 @@ func (i *InfoWindow) Resize(w, h int) {
 	i.y = h
 }
 
+func (i *InfoWindow) SetBuffer(b *buffer.Buffer) {
+	i.InfoBuf.Buffer = b
+}
+
 // func (i *InfoWindow) YesNoPrompt() (bool, bool) {
 // 	for {
 // 		i.Clear()

cmd/micro/display/window.go

@@ -24,3 +24,8 @@ type Window interface {
 	Resize(w, h int)
 	SetActive(b bool)
 }
+
+type BWindow interface {
+	Window
+	SetBuffer(b *buffer.Buffer)
+}